The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You should be able to estimate when it's possible to plant decorative kale by checking out the USDA zone info for Viroqua.

Planting Calendar for Decorative Kale

Frost tolerance for decorative kale:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Since decorative kale are moderately cold tolerant you can plant them just a bit earlier in the year than other frost tender plants.

The earliest that you can plant decorative kale in Viroqua is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant decorative kale and expect a good harvest is probably August. If you wait any later than that and your decorative kale may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your decorative kale indoors.

Last Frost Date

On average all chance of frost has passed is on May 15 in Viroqua. In the coldest months of winter you can expect an average low temperature of -25°F.

Since the USDA zone info for Viroqua is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in Viroqua you get surprised by a frost after May 15 so be sure to be ready to protect your decorative kale if you have a surprise late frost.

USDA Zone Info for Viroqua

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Viroqua

You may be interested in your other planting guides for Viroqua.